/*
 * Copyright 2009 Red Hat, Inc.
 *
 * Red Hat licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.organic.cell.http.internal.snoop;

import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.jboss.netty.handler.codec.http.HttpChunk;
import org.jboss.netty.handler.codec.http.HttpResponse;
import org.jboss.netty.util.CharsetUtil;

/**
 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
 * @author Andy Taylor (andy.taylor@jboss.org)
 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
 * @version $Rev: 2189 $, $Date: 2010-02-19 18:02:57 +0900 (Fri, 19 Feb 2010) $
 */
public class HttpResponseHandler extends SimpleChannelUpstreamHandler {

  private boolean readingChunks;

  @Override
  public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
    if (!readingChunks) {
      HttpResponse response = (HttpResponse) e.getMessage();

      System.out.println("STATUS: " + response.getStatus());
      System.out.println("VERSION: " + response.getProtocolVersion());
      System.out.println();

      if (!response.getHeaderNames().isEmpty()) {
        for (String name : response.getHeaderNames()) {
          for (String value : response.getHeaders(name)) {
            System.out.println("HEADER: " + name + " = " + value);
          }
        }
        System.out.println();
      }

      if (response.isChunked()) {
        readingChunks = true;
        System.out.println("CHUNKED CONTENT {");
      } else {
        ChannelBuffer content = response.getContent();
        if (content.readable()) {
          System.out.println("CONTENT {");
          System.out.println(content.toString(CharsetUtil.UTF_8));
          System.out.println("} END OF CONTENT");
        }
      }
    } else {
      HttpChunk chunk = (HttpChunk) e.getMessage();
      if (chunk.isLast()) {
        readingChunks = false;
        System.out.println("} END OF CHUNKED CONTENT");
      } else {
        System.out.print(chunk.getContent().toString(CharsetUtil.UTF_8));
        System.out.flush();
      }
    }
  }
}
